Na seção "Funcionalidade principal do programa", nas páginas de suporte : A tradução pop-up funciona em aplicativos do Microsoft Office e no Internet Explorer.
Question: Why doesn’t the pop-up translation function work?
Answer: To use the pop-up translation function, make sure ABBYY Lingvo 12 is running at the moment you want to use the function. Go to Tools -> Options -> Translation -> Look-up from other applications, and make sure the option "Show pop-up translation" is selected.
The pop-up translation function works in Microsoft Office applications and in Internet Explorer. If you experience problems, try restarting ABBYY Lingvo 12. Select "Translate", then click "Exit". Pop-up translation doesn’t work in PDF files, so use hotkey translation instead.
Mas há esperança:
To use the hotkey translation function, select the corresponding option in Tools -> Options -> Translation -> Open a full entry.